Table of Contents
Which has more reducing power NH3 or BiH3?
The stability of hydrides decreases down the group from NH3 to BiH3. This is due to a decrease in their bond dissociation enthalpy. NH3 is a mild reducing agent, and BiH3 has the strongest reducing character amongst all hydrides of group 15.
Which of the following properties decreases from NH3 to BiH3?
Thermal stability of hydrides decreases from NH3 to BiH3.
Why is BiH the strongest reducing agent?
Why is BiH3 the strongest reducing agent amongst all the hydrides of Groups 15 elements? Answer: Thus as we move down the group, the M—H bond can break more easily to evolve H2 gas which acts as the reducing agent. Thus, BiH2 is least stable among the hydrides of group 15 and hence is the strongest reducing agent.
Why is PH3 a reducing agent?
Answer: In ph3 phosphorus is in +3 state and its highest oxidation state is +5 and lowest is 0 so it might act as reducing agent or Oxidizing agent.
Is PH3 a strong reducing agent?
c BiH3 is the strongest reducing agent while NH3 is the weakest reducing agent. NH3,PH3,AsH3, SbH3, BiH3 -increasing báse strength.
Which of the following properties increases from NH3 to BiH3?
Reducing property increases from NH3 to BiH3 II. Tendency to donate lone pair decreases from NH3 to BiH3 III.
Why does bond angle decrease from nitrogen to bismuth?
Bismuth is the strongest reducing agent among all the other hydrides. These hydrides are pyramidal in shape with a lone pair of electrons in one of the orbits. The bond angle gradually decreases down the group due to the decrease in bond pair- bond pair repulsions.
What is the reducing character of NH3?
NH 3 is a mild reducing agent, and BiH3 has the strongest reducing character amongst all hydrides of group 15. The trend of group 15 hydride based on reducing character is as given below. BiH3 > SbH3 > AsH3 > PH3 > NH3 Stability decreases down the group as the bond dissociation energy decreases.
Which has more reducing character n h x 3 or B ihx3?
Reducing character is the ability of a substance to reduce something else. So it itself must get oxidized. Since B i H X 3 has a large radius, it will loose hydrogen atoms easily. Hence I conclude B i H X 3 has more reducing character than N H X 3. Basicity is how easily can the compound give up hydrogen atoms/electrons.
Why is BiH3 less basic than NH3?
Since BiH3 is a drago compound, the lone pair it has, is stereochemically inactive and hence cannot be donated. This makes it less basic as compared to NH3 (NH3 can donate its electron ).
Why is BiH3 the strongest reducing agent?
On the other hand hydrogen one of the smallest known element. Due to size difference , strength of the bond between the two decreases. Hence BiH3 strongest known reducing agent.